Procedures for theoretical redistribution of diameters in eucalyptus stands

CERNE

Soares, Thelma Shirlen²  Soares, Carlos Pedro Boechat¹  Leite, Hélio Garcia¹  Vale, Antônio Bartolomeu do¹ 

[1]Universidade Federal dos Vales do Jequitinhonha e Mucuri/UFVJM, Viçosa, Brazil$$

[2]Universidade Federal dos Vales do Jequitinhonha e Mucuri/UFVJM, Diamantina, Brazil$$

关键词: Growth and yield;    eucalyptus;    diameter distribution.;   

DOI  :  10.1590/S0104-77602010000100008

来源: Universidade Federal de Lavras-UFLA

【 摘 要 】

This study aimed to evaluate the application of a procedure referred to as step invariant for theoretical redistribution of diameters by class in a diameter distribution model, using the Weibull probability density function. Data from the first rotation of hybrid eucalyptus stands (Eucalyptus grandis x Eucalyptus urophylla) planted with spacings of 3 x 2 m, located in northeastern Bahia state were used. Measurements were taken annually with measurement age ranging between 25 and 89 months. The step invariant procedure provided satisfactory results in comparison to the traditional procedure, being therefore recommended for future applications due to its unbiased results and ease of fit.

【 授权许可】

Unknown